1225964783 has 8 divisors (see below), whose sum is σ = 1251147600. Its totient is φ = 1200858048.

The previous prime is 1225964777. The next prime is 1225964807. The reversal of 1225964783 is 3874695221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1225964783 - 2⁴ = 1225964767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225960783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14123 + ... + 51491.

It is an arithmetic number, because the mean of its divisors is an integer number (156393450).

Almost surely, 2^1225964783 is an apocalyptic number.

1225964783 is a deficient number, since it is larger than the sum of its proper divisors (25182817).

1225964783 is an equidigital number, since it uses as much as digits as its factorization.

1225964783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38041.

The product of its digits is 725760, while the sum is 47.

The square root of 1225964783 is about 35013.7799016330. The cubic root of 1225964783 is about 1070.2683063727.

The spelling of 1225964783 in words is "one billion, two hundred twenty-five million, nine hundred sixty-four thousand, seven hundred eighty-three".